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E. GORNELY. EMBROIDERING AND SEWING MACHINE.

110,250,825. Patented Nov. 29,1881.

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E. OORNELY. EMBROIDERING. AND SEWING MACHINE. No. 250,325. Patented Nov. 29,1881.

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NO. 2501325. Patented Nov. 29,1881.

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UNITED STATES PATENT OFFICE.

EMIL CORNELY, OF WASHINGTON, DISTRICT OF COLUMBIA.

EMBROIDERING AND SEWING MACHINE.

SPECIFICATION forming part of Letterslatent No. 250,325, dated November 29, 1881.

Application filed May 3, 1881. (No model.) Patented in France January 29, 1881, in Belgium February 4, 1881, and in England February 5, 1881.

To all whom it may concern Be itknown thatI, EMIL CORNELY, of Washington city, in the District of Columbia, at present a resident of Paris, in the Republic of France, have invented a new and useful Improvement in Embroidering and Sewing Machines, which improvement is fully set forth in the following specification.

Figure 1 represents an elevation of the improved machine, with certain parts thereof in sections. Fig. 2 illustrates, on an enlarged scale, the new ornamental seam produced by said machine. Fig. 3 represents an elevation of the mechanism to which the invention has special reference. Fig. 4 is a cross-section through line 9 10, Fig. 3; and Fig. 5, a plan of the mechanism shown in Fig. 3. Figs. 6 and 7 are vertical and horizontal views similar to Figs. 3 and 5, showing different dispositions Fig. 8 is a section through line 11 12, Fig. 3.

My invention relates to certain improvements on the embroidering-machine for which Letters Patent were granted to me, as assignce of Antoine Bonnaz, on the 10th day of November, 1868, No. 83,910, and has for its object the production by improved means of an ornamental embroidering-seam, which is obtained by the serpentine windings of a second thread under the chain-stitch seam.

The construction and operation of the Bonnaz embroidering-machine being fully known, the drawings and descriptions are limited to the subject-matter of the present invention.

The letters of reference in the drawings for the like parts are, as far as it is possible, the same as those in the specifications of the patentofNovember 10, 1868, No. 83,910, Septemher 2, 1879, N 0. 219,225, and JuneS, 1880, No. 228,445, which show some of the mechanical elements of the present machine, but in different combinations and for different purposes.

As in the Patent No. 228,445, the second threadin this machineis conducted by a threadcarrier, 1), Fig. 1, which is disposed in a similar manner to the one shown in Patent No. 228,445, and which receives its motion by means of the gearings B L K and shaft 19, shown and described in said Letters Patent, but with this difference, that said thread-carrier, instead of turning around the needle in a continuous revolving motion, has an oscillating motion imparted to it, so that it lays its thread around and under the needle at each stitch of the machine, once to the right and once to the left. This oscillating motion of the thread-carrier b is obtained in the following manner: A pinion, N, provided with oblique teeth on its circumference, is secured to the main shaft D of the machine, and drives a horizontal cogwheel, 0, of double the diameter of pinion N, which is secured to the shaft P, which turnsin casting A ofthe machine. A crank, U is secured to shaft P, and its pitman V drives a slide-head, F, which is guided Within suitable ways, 0, of the bed-plate A. The pitman V is secured at one end to the crank-pin f, and at its other end to the slide-head F, by means of stud g.

The shape of the slide-head F is best shown in Fig. 4. Its forked end It extends into a collar, '5, on the sleeve M, Fig. 3. As the wheel 0 is turned by the revolution of the main shaft, the shaft P, crank U and pitman V impart a reciprocating motion to the slide-head F, and

loosely set upon the shaft W, and thus slides on said shaft, forward and backward. The extremity of the sleeve M is provided with a helical gear, R, which acts upon a similar helical gear, T, secured to shaft 19, and thus communicates an oscillating motion to the thread-carrier b, by which it lays its thread under the needle-thread at each stitch of the machine, once to the right and once to the left.

With the universal-feed machine it is necessary for the thread-carrier b to follow the movements of the universal feed of the ma chine, which is governed from the crank handle S, Fig. 1, through the gearing?" s v x y, shaft 2, pinions UV, shaftW, and pinionsYZ, for Whenever the direction of the feed is changed by means of crank-handle S the position of the thread-carrier I) must change in a similar way, or it could not layits thread in the path of the needle. The desired movement is effected in the following manner: A part of the sleeve M is milled out square in its interior, so that a square nut, it, Figs. 3 and 8, will fit nicely within the hollow part thereof. The nut n is screwed rigidly to shaft W by means of screw 2, so that when the crank-handle S is consequently to the sleeve M, which latter is turned the shaft W and nut n and sleeve M will be turned with it, and the screw-gear R will turn that of T, and consequently revolve shaft 12, wheels K L B, and thread-carrier b. The latter thus has acompound motion imparted to it, the one resulting from the operation of the wheels N and O, which impart to it the oscillating motion, and the other resulting from the crank-handle S, which turns it always in the direction of the feed; but both these movements, although independent one of the other, do not interfere with each other, and the result is the production of the aboveexplained ornamental seam by means of a uni- Versal-feed embroidering-machine.

Figs. 6 and 7 show a modified disposition of the parts. Motion is communicated from the sleeve M to the shaft 1) by bevel-gears R and T, and the compound motion before referred 'to is imparted to the sleeve M by means of a screw and nut. The sleeve Q, which is actuated by slide-block F, is provided with a screw-nut, H, which byits reciprocation imparts to screw It of sleeve M an oscillating motion on shaft W, which is communicated to the thread-carrier I) by means of bevel-gears R T, shaft 19, and wheels K L B,while at the same time any motion of the crank S is transmitted to the thread -carrier 1) through screw-nut H and screw It. The ornamental seam obtained is represented at Fig. 2; the chain-stitch is represented in unshaded and the second serpentine thread in shaded line. The threadcarrier 1) receives its thread from spool G, Fig. 1. The thread descends from said spool through the hollow needle-bar o, and escapes from a hole in nipple-tube H, whence it is passed through the threading-holes of the thread-carrier b. In this machine the needle-tube H turns with the needle-bar when the latter is turned by the crank-handle S with the feed of the machine.

It is evident that the above-described mechanism can be equally well applied to sewingmachines which work with a universal feed.

It is evident that the above-described mechanical devices may be modified without materially changing the substance of my invention. Thus, for instance, the pitman V may be operated by means of a cam instead of a crank; or it may be operated by the action of the crank-pin upon a cam-groove,if the circular movement of the crank-pin should not be found suitable for the proper operation of the machine. Similar changes may also be made in the shape ofthe driving-screws; and, instead of the screw-threads It, a spiral groove may be cut into the rear part of the sleeve M, and a friction-roller of the sleeve H may be fitted into such spiral groove to produce the same effectas the screw-gears above described. Such modifications, which are mere mechanical details, do not change the substance of my invention.

I claim- 1. The combination, with the shaft of the sewing-machine, the needle-bar, and means for reciprocating the latter, of athread-carrier and mechanism independent of the needle-bar and receiving motion from the aforesaid shaft for oscillating said carrier around the needle, substantially as described.

2. The combination of a hollow shaft or sleeve supported on the shaft which directs the feed movement, mechanism for reciprocating the said hollow shaft or sleeve, a thread-carrier, and gearing for imparting an oscillating movement to the thread-carrier from the hollow shaft or sleeve, substantially as described.

3. The combination of the wheels N O, shaft P, crank U pitman V and slide-head F with the hollow sleeve M, sliding upon shaft W, substantially as and for the purpose herein de scribed.

In testimony whereof I have signed this specification in the presence of two subscrib- 8 ing witnesses.

EMIL CORNELY. Witnesses J ULIUs Hmson, PHILIP WALKER. 

